Dad says it’s a stud finder...

[Finder Bear]

Is this indeed a stud finder? Is it worth anything? Any info is appreciated!

 

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[Goodyguy]

It measures 16" from center of stud to center of stud

 

[Finder Bear]

It measures 16" from center of stud to center of stud

Any thought on value

 

[desertexplorer]

Goodyguy is right, it lays out 16” centers for studs on the top and bottom plate. Starting at the wall the wheel rides the plate and each time 0 comes around that’s 16” and you mark it (hence the name “Mark 16”). I’ve heard of one of these used but have not seen one. They had a tendency to slide if the wheel got a little stiff giving an erroneous measurement. No idea of value.